Where to find the cheapest metal

Status
Not open for further replies.

newrider3

New member
Messages
1,674
Reaction score
5
Location
Colorado
Just use a grinder....Don't be heavy handed with it and you won't take much of the steel off either. You need to grind the zinc away to get a good weld anyway, otherwise it is hard to get a good arc or decent penetration, and the smoke smells like sh!t and really impairs your vision when welding, on top of the health risks.
There will still always be some inside the tube burning, but it is still a good idea to minimize your exposure.
 

Doc Sprocket

*********
Messages
15,677
Reaction score
151
Location
Ontario, Canada
when welders wanted to make money, they went around to farmers and asked if they wanted any gates welded up. gates were galvanised though, so they needed a way to avoid the zinc coating effecting them. in the morning they would drink a glass of milk, normal milk, they went on there day welding the gates fine. when they came home they went to the bathroom and vomited the milk and whatever else up. the milk caught all the zinc, but as a result of this practise many of those welders are now in bits due to vomiting on a daily basis. not good to do to say the least.

Sounds like a fish tale to me... Drink a glass of milk in the morning, it's certainly NOT going to still be in your stomach ready to be heaved up at the end of the day. Barfing woulda been a result of being bloody sick from that toxic crap. Secondly, somebody's GOTTA explain to me how the he// milk in your stomach could possibly have any kind of effect on fumes you're inhaling! I'm no biologist here, but I'm pretty reasonably sure the lung bone AIN'T connected to the stomach bone!?!?!
...Just my two cents...
 

Flexibel_kampfe

Hopeful for building kart
Messages
422
Reaction score
0
Location
RI
It sounds like the wacked bone is connected to the story bone.... if you ask me.... Either way... if I have to use galvy, I will try to remove it... I only need to remove it from the area where the arc will be, and where the ground clamp goes, right?
 

Doc Sprocket

*********
Messages
15,677
Reaction score
151
Location
Ontario, Canada
Basically. Try to clear off the entire HAZ (Heat Affected Zone), as opposed to just 1/4" where the weld will be. Make no mistake, it WILL kill you. Even outside, place a box fan or something over your shoulder to blow the fumes away. Nasty stuff. Avoid using it if at all possible. If you must use it, you could possibly clear it off with a wire cup wheel on an angle grinder. Perhaps that will leave more actual steel intact... I've never had a problem welding it, but it will cut down on the smoke.

Incidentally, there's another reason you may not want to use galvanized. A lot of paints will not adhere to it, many just flake right off, like Tremclad, Rustoleum, etc. There ARE specialty primers out there for galvanized, you just have to make sure you get one.
 

Flexibel_kampfe

Hopeful for building kart
Messages
422
Reaction score
0
Location
RI
Basically. Try to clear off the entire HAZ (Heat Affected Zone), as opposed to just 1/4" where the weld will be. Make no mistake, it WILL kill you. Even outside, place a box fan or something over your shoulder to blow the fumes away. Nasty stuff. Avoid using it if at all possible. If you must use it, you could possibly clear it off with a wire cup wheel on an angle grinder. Perhaps that will leave more actual steel intact... I've never had a problem welding it, but it will cut down on the smoke.

Incidentally, there's another reason you may not want to use galvanized. A lot of paints will not adhere to it, many just flake right off, like Tremclad, Rustoleum, etc. There ARE specialty primers out there for galvanized, you just have to make sure you get one.[/
Thats good... its for a workbench, so I dont want all sorts of paints adhearing to lit... hense why I dont want to use wood...
 

devino246

Official DIYGK Chem Nerd
Messages
3,856
Reaction score
16
Location
Lynchburg, VA
Sounds like a fish tale to me... Drink a glass of milk in the morning, it's certainly NOT going to still be in your stomach ready to be heaved up at the end of the day. Barfing woulda been a result of being bloody sick from that toxic crap. Secondly, somebody's GOTTA explain to me how the he// milk in your stomach could possibly have any kind of effect on fumes you're inhaling! I'm no biologist here, but I'm pretty reasonably sure the lung bone AIN'T connected to the stomach bone!?!?!
...Just my two cents...

I dont see how that could work in the way KieranM described it. I remember reading something a while ago that the calcium in milk would counteract the ill effects of zinc in your system. That seems like it makes more sense IMO. Ive welded a ton on galv. steel and never had any ill effects. Mabe its because i drink a ton of milk?

Incidentally, there's another reason you may not want to use galvanized. A lot of paints will not adhere to it, many just flake right off, like Tremclad, Rustoleum, etc. There ARE specialty primers out there for galvanized, you just have to make sure you get one.[/

Ive never had a problem with rustoleum on galvanized.
 

KieranM

Doin It!!
Messages
1,409
Reaction score
3
Location
Kilkenny, Ireland
why is everyone against what i said??? i heard it straight from someone who done it along time ago and he had to give it up.

Anyways i was welding mild steel for about 3 hours today without a mask ( stupid i know) and now my throat is killing me, nobody knows what im trying to say. wear a mask for welding mild steel aswell.

Milk dosent digest aswell as water and will stay in your system, now this could be a load of bull**** but since it was brought up i though i would mention it.
 

devino246

Official DIYGK Chem Nerd
Messages
3,856
Reaction score
16
Location
Lynchburg, VA
why is everyone against what i said??? i heard it straight from someone who done it along time ago and he had to give it up.

Anyways i was welding mild steel for about 3 hours today without a mask ( stupid i know) and now my throat is killing me, nobody knows what im trying to say. wear a mask for welding mild steel aswell.

Milk dosent digest aswell as water and will stay in your system, now this could be a load of bull**** but since it was brought up i though i would mention it.

We're not saying your full of ****, we're saying hes full of ****. It doesnt matter how long it takes to digest, your stomach isnt selective when moving its contents on.
 

Doc Sprocket

*********
Messages
15,677
Reaction score
151
Location
Ontario, Canada
We're not saying your full of ****, we're saying hes full of ****. It doesnt matter how long it takes to digest, your stomach isnt selective when moving its contents on.

Bingo! And just because he did it, doesn't mean it was effective! And to reiterate, it's evil s**t entering the LUNGS that's the problem, not the stomach.

Bottom line? don't F*ck with this. Use plenty of ventilation. Period.
 

DirtTrackRacer_07

DeeR SlayeR
Messages
222
Reaction score
1
Location
tennessee
i dont know who your sayin is full of sh*t devino but it was just something that one of my friend told me that he had to do before he had to weld that stuff and i dont know how in the world it would help any and dont know how it is linked stomach and lungs but he had to do it for thirty something years so i figured i mite through it out there i didnt mean to get a arguement started over nothing im sorry if anyone took it that way i didnt maen anything
 

Doc Sprocket

*********
Messages
15,677
Reaction score
151
Location
Ontario, Canada
Hey, don't worry about it. That's what forums are all about! Throw something at the wall and see if it sticks. And seriously- Just because it's been done for thirty years... Well, how long were they putting asbestos in homes? Everything from wall and pipe insulation, floor and ceiling tiles, drywall... That was done for a very long time. Didn't turn out to be harmless, did it? How 'bout lead-containing products? 'nuff said...
 

Flexibel_kampfe

Hopeful for building kart
Messages
422
Reaction score
0
Location
RI
Hey, don't worry about it. That's what forums are all about! Throw something at the wall and see if it sticks. And seriously- Just because it's been done for thirty years... Well, how long were they putting asbestos in homes? Everything from wall and pipe insulation, floor and ceiling tiles, drywall... That was done for a very long time. Didn't turn out to be harmless, did it? How 'bout lead-containing products? 'nuff said...

Believe me, somethings are definately meant to die... like the use of Aspestos... my boss's husband died of it, due to working with oil burners... but lead paint... thats the kids fault for chewing on the sill.. natural selection... So just be aware that post might have a double meaning..

-Bren
 

Hendersonjk

New member
Messages
100
Reaction score
0
Location
Arkansas
Paint on galvenized

welding makes toxic fumes anyways. Welding runs the risk of skin and lung cancer. read that in my licoln book I think? to paint galvenized clean it with vineger to neutralize it. my father inlaw works for a painting company they do it to roofs all the time. I would do vineger then soap and water before paint
 
Status
Not open for further replies.
Top